I was trying to use DVDx 2.2 to rip my DVDs...but there was a very strange problem. When it rip for about 10 minutes...my computer generated some "BEEP BEEP...." sound...just like an alert! Then the pc shut offs! I tried many times it still the same! I even tried the DVDs that I've been ripped successfully before too....but end up the same....Anyone knows what happened to my computer?

I'm currently running WIN XP....
I even tried to use DVD ripper and DVDAVI.......after the ripper...in the DVDAVI it has the same problem....

Anyone please help me out.